science study guide final Flashcards
(20 cards)
What are the moon phases?
The moon phases are the different appearances of the Moon from Earth over about 29.5 days
How long does it take the Earth to make one complete revolution?
365.25 days
How are the moon,earth and sun aligned during a spring tide? Neap tide?
Spring tides: straight line. neap tide: right angle
What is an equinox?
Day & night are equal length
How long does it take the Earth to rotate on its axis?
24 hours
What is the name of our galaxy?
Milky way
When does a lunar eclipse occur?
Earth is directly between the moon & the sun
The study of the moon, stars and other objects in space is known as what?
astronomy
When the right side of the moon appears to grow with light it is called what?
waxing
Why does the Earth have seasons?
Axis is tilted
What is a solstice?
Greatest distance between north & south poles
What is the path the Earth follows?
orbit
Describe how a solar eclipse occurs.
When the moon moves between the earth & the sun
What force attracts all objects towards each other?
gravity
What is at the center of our solar system?
sun
What is a tide and what is the primary cause of tides?
Rise and fall of sea levels & gravitational pull of the moon
What causes day and night on Earth?
Earths rotation
The study of the moon, stars and other objects in space is known as what?
astronomy
What is the shape of our planet’s orbit?
oval
What is the difference between a new moon and a full moon?
Full moon: when the entire side facing the earth is fully lit, new moon: The side of the moon facing Earth is not lit.
